Web stretching and guiding device.



1. T. BOLTON. WEB SIRETCHING AND GUIDING DEVICE.

v APPLICATION FILED NOV. 20. 1916. 1,237,667, Patented Aug. 21, 1917. 3 SHEETS-SHEET 1.

LT. BOLTON. WEB STRETCHING AND GUIDING DEVICE.

APPUCATION man Nov.2 o. 1916. I 1,237,607. PatentedAug. 21,1917,

' 3 SHEETS-SHEET 2.

0 5%? .EO/ZEIN wane mas I fifwd/ w J. T. BOLTON.

WEB STRETCHING AND GUIDING DEVICE.

APPLICATION FILED NOV. 20. 1916.

1,2373%?w Pat enfed' -.-21,1917.

3 SH 'SHEET 3- l fgn fi fan/e5 $1 wuwwto c s ims mme PAT N r s JOHN T. BOLTON, OF NEW HAVEN, conNEcTIcUT. assrenon 0F ONE-HALF To THE FORSYTH DYEING 00., 0 NEWJHAVEN, connEcTIcUT, A CORPORA ION or con- NEcTIcUT.

' 1,237,eof7.

To all whom it may concern;

Be it known that I, JO N-T. -BoLToN, a citizen. of the United States, and resident of the city of New. Haven,;in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Web Stretching and-Guiding Devices, of whichthe following is a specification. Z I

This invention relates to spreading and guiding devices for operating upon a'web of material such as cloth, paper or the like while being fed to a machine, such forinstance as a tenter, calender, drier, printing machine and .the like; and an object of the invention is to provide a simple and practical means comprising essentially a single operating roll, one operatively mounted at each of the opposite edges of the web with their axes set on an angle' to the travel of the web, a portion of the face of each roll I being roughened or provided with pins or to provide simple and effective means protuberances to actupon and spread the web and bring its edges to a predetermined position upon entering themachine which is to operate upon 'it.

A further object of the invention is to provide means for automatically arresting, the rotation of the roll when the web has receivedan excessive lateral motion on either side, so as to present the unroughened or smooth portion of the roll to the web, thereby permitting the web to slide upon this portion of thenow stationary roll inwardly or back toward the center as it is drawn thereover during its continued travel.

A still further object of the invention is whereby the device may be readily attached to any machine with which it is to operate.

The invention further consists in thepro- I vision of means whereby the roll mechanism maybe. ad usted vertically; and also whereby the angularity of the roll may be readily adjusted. i y

WVith these and other objects in view, the Y invention consists of certain novel features of construction, as willbe more fully described, and particularlypointed outin the p I f -In the accompanying drawings:

appended claims. i

traveling web of material upon the opposite WEB sTEETcnIne AND quinine DEVICE.

I Specification of Letters Patent. Patgnted A 0, 21, 1917, Application filed November 20, 1916. Serial No. 132,354. i

/ 33 of Fig. 2 illustrating the construction of the roll as made in halves secured together by screws, to one of which halves is secured a sheet of material with a roughened surface.

Fig. 4: is a view showing the roll as set on its operating angle to illustrate the spreading offset of its action upon the web while passing this roughened surface.

Fig. 5 is an enlarged view showing the edge of. av sheet of materialsuch as tin or the l1ke as provided with sharp edgedprotuberances, which sheet is in some cases attached to a portion of the face of the roll.

Fig. 6 is an: end view of the roll and the gulde bars in section showing the web .of material as guided around the roll to engage a considerableportion of this surface.

. Fig. 7-.- is the same as Fig. 6 but illustrating the feeler fingers as having engaged the web and arresting the rotation of the rollv in position to bring the smooth portion of its surface in contact'with the web.

Fig. 8 is .a perspective view illustrating the general shape of the guide bar, on one end of which is supported the fixed setof feeler fingers,

Fig. 9 is a sectional view showing the rotatable finger carrying feeler wheel as connected to the driving gear.

Fig. 10- is a plan view of the feeler wheel showing a plurality of sets. of fingers projecting from its periphery.

Fig. 11-' is an enlarged view'showing one of the feeler fingers as provided withantifriction rollers on its surface.

Figs. 12 and 13 are end and side views respectively of a modified construction of apparatus in whichbut one set of revoluble feeler fingersare employed and which set is driven at the same speed as the stretcher roll through miter gears- Figs. 14 and 15 are end' and side views 1 respectively of another modification in which Figure 1 is a front-view illustrating a the fixed feeler fingers are located on the upper instead of the lower side of the roll,

6O wardly from the inside thereof, but I do not wish to be restricted to this particular form and the revoluble set of fingers are carried on atflanged portion of the roll.

-Referring to the drawings, 10 designates rail portions of the frame of a tentering machine to which the web of material'll is being fed in the direction of the arrow over the guide bar 12. To each of these rails 10 is connected an upright rod 13, on the upper end of Which is a bracket 14 held in position on the rod by means of set screws 15 and in this bracket 14 is pivotally mounted at 16 a bearing member 17 in which is held a fixed shaft '18 prevented from rotation by set screws 19.

Bythis construction it will be seen that the stretch rolls may be readily adjusted in line with the travel of the goods which is desirable fora number of reasons among others being that often the flappingor snapping of the goods due to a quick stretching pull throws a wrinkle into its edge and the stretch roll must be adjusted a distance from the machine rolls to permit this wrinkle to become straightened out before entering the machine and this distance varies with the weight of the goods. In other words, when a length of goods of a certain weight is to be run through the tentering machine the stretch rolls are adjusted vertically relative to the lower guide bar 12 and are worked just far enough away from this bar to permit'the straightening out of a. wrinkle which may be drawn into the goods. The lighter the goods the closer the-stretch roll is. run

to the bar 12and the heavier the goods the farther away it may be set.

It will be noted that by this construction,

1 the bearing member 17 may be swung to any angle in its bearing portion of the bracket 14: and retained in that position by the set On this shaft 18 is rotatably terial'22 having a roughened surface, and

fasten the edges 23 of this covering sheet by turning them inwardly between the two halves of the roll and then fasten these halves together by the screws 24,.leav ing the roll free to turn on the shaft 18, but the roll may be made in one piece and the rough ened surface might be a part of the roll itself if desired.

In some instances this covering sheet may bev constructed :of tin, brass or other thin sheet metal with sharp protuberances raised thereon by punchin holes through out of roughened surface as sand paper, small pins or anyv other suitable form of roughened surface may be employed.

the feeler wheel 30 torotate said wheel in time with the roll, but at a speed one-third as fast. I therefore have provided three sets of fingers 31 on this feeler wheel so that one set will always be in position to cooperate with the single set of fixed fingers 32 at each revolution of the roll, to grip the margin of the web should it be drawn't'oo far to one side, to arrest the rotation of the roll. This set of fixed feeler fingers 32 is attached to the arm 33, which latter is supported on-the looped end 34 of the guide bar 35, see Fig. 8. The upper endv 36 of this guide bar is fixed in the bearing 37 and its upper arm extends longitudinally along the upper face of the roll, the bar is then looped around its' end as at 38 and its lowerarm returns along the lower face of the roll as best illustrated in Figs. 6 and 7, whereby the web may be passed under both of these arms to guide it around a considerable portion of the surface of the rollto provide an extended area of contact of the web with the surface of the roll.

The opposite end 34 of this bar provides areturn loop on which the bracket for the fixed fingers 32 is supported as best illu's-' trated in Fig. 8.

By my improved construction of stretching and guiding devices, it will be noted that the traveling web is conducted over the face of the single roll, which roll is rotated by contact therewith. The axis of each roll is inclined with the travel of the web, whereby the rotating surface of the roll has a stretchfixed fingers 32 and when the stretching roll rotates into the position illustrated in Fig. 7, to bring its planeor smooth portion toward the web, at this moment the fingers 31 of the feeler wheel, cooperating with the fixed fingers 31, engage the web in the manner illus-- trated in Fig. 7, and arrest its rotation, and as this wheel is connected to the roll, the latter is also stopped. The web continues to travel and is now caused to slide over'the smooth surface of the inclined roll, which action at once causes the edges of thefabric to contract or move inwardly and be withgers, thereby releasing the .rfwheel which again starts to rotate byaction ofthe fabric 'slidingover the roll,which action continues until the margin of the web is again drawn over to one side and in front of the .feeler fingers when the arresting operation is again repeated. I

It will be noted in Fig. '9 that the fixed feeler fingers are of 'a'length' sufficient to 1 arrested.

In some instances instead of-running the feeler Wheel slower than the roll 21 as above described, I provide a set of miter gears 39, one connected to theroll 4:2an'd the other to the sleeve 40, thereby driving this sleeve '40 with its single set of pins' fl, atthe same speed as that of the roll. In Otl1GI'-C1S8S,I provide a flange 43 with feeler fingers 45 arranged to 'work' in'conjiinetion with the fixed fingers on the member 47 which is supported on the web 48 and in this case 11 have placed this support 47 above the roll 7 rather than below as illustrated in the preferred forin;

I have shown three ways of operating the feeler fingers in time with the roll, but I do not wish to'be restricted to any of these constructions, as-any suitable means may be provided for moving a set of feeler fingers into position to engage the margin of the -web when moved in their path of travel to stop the roll in a predetermined position I I" have described and'illustrated one-em- "bodiment of my invention with two 'inodifications thereof, but I desire itto be understood that I do not limit m yself to any of comprising a roll mounted to be rotated byf the exact constructions shown and described as the details of the same may be"changed and rearranged'without departing "from the spirit of-my invention,1the'scope of which is defined y the ppended claims. Ic laim: v M.

Y 1-. A web stretchingdand' guiding'device comprising a roll for engaging each edge "of theweb to be fed, m ea'ns whereby each roll may have its axis set on an angle to the travel of'the web, a longitudinally disposed section on the surface of each roll being roughenedandasimilarly disposed section being smooth.

2. A web stretching and guiding device comprising a single rollfor engaging each tions on the surface of each roll.

" a predetermined pointf 1 one side.

3. 'A web'stretching and guiding device comprising .a roll for engaging each edge of theweb'tc be fed, means whereby each roll may have its axis inclined in the direction of the travel of the web, and having alternate roughand smooth longitudinally disposed sections on the surface of said engaging roll, and means controlled by the action of the web for arresting thespreading action of said'roll upon-the web.

'- 4-. A web-stretching and guiding device comprisingla rolhfor engaging each edge of the web to be fed, means whereby'each roll may have its axis inclined in the direction ofthetravel vofthe web, the surface of the roll. being provided with alternate roughened and smooth sections, and-means for guiding the web around a portion of the surfaceof: the roll.

'5. A web stretchingfi'and' guiding device 'comprisinga single roll for engaging each edgeoftheweb to be fed, means for setting the axis of each roll on an incline in'the direction of the travel Of thBWVGb, the surface of the roll being provided with a smooth section and a section not smooth both extend-- ing longitudinallyof the roll means' for guiding the web around a portion of the "the webhas been drawn' to one sidetbeyond 6. A web'stretching and guiding device comprising a rotatable roll adapted. to engage each edge of the web to be fed, a portion of the surface of each rollbeing smooth and a portion not smooth, means for guid ing the web over thesurface of the running roll, and means for arresting the roll to bring itssinooth side toward the web when it has been'drawn an excessive distance to 7. A web stretching and guiding device contact with each edge'of th'e traveling web,

ing the rollto "bring its smooth sidetoward the webwhen the web has been drawn toone side beyond a predetermined: point 8. A web 'stretchlngand. guiding device comprising a roll mounted to be rotated incontact with each edge of the traveltravel of the web, a portion of the surface of the roll being smoothan'd a portion not smooth, means for guiding the web around a portion of the surface ofthe roll, and a means whereby the axis of: each roll may be inclined in thedirec tion" oftravelvof the web, a portion of the surface *of the roll beingsmooth, and aportion not smooth, means for guiding the web around aiportion of the surface of the roll'and a 'feeler member driven' in time with said roll for arrest rotatable feeler member positively driven by and-in time with saidroll for arresting the roll to bring its smooth side toward the web when the web has been driven. to one side beyond apredetermined point.

9. A .web stretching device comprising a driver roll adapted toengage each edge of the web to be guided, means for guiding the web around a portion of the surface of the roll, alternate rough and smooth longitudinal sections on said roll, and adjustable means for settingthe axis'of said roll on an angle to the travel-of the web.

10. A web stretching device comprising a driver roll adapted to engage each edge of the web to be guided, meansfor guiding the web around a portion of the surface of the roll, a portion of said roll being roughened, adjustable means for setting the axis of said roll on an angle to the travel of the web, and means for automatically arresting'the rotation of said roll in position to present its smooth side to the web when the Web is drawn too far to one side.

11. A web stretching andguiding device comprising a roll adapted to be driven by contact with eachedge ofa traveling web, a portion of said roll being smooth, readily adjustable means for setting said roll at an angle to the travel of said web, means for guiding the web to engage a considerable portion of the surface of said roll, and r0- tatable means positively driven by the rotation ofthe roll for arresting the latter when the web is drawn too far to one si e. 7

12. A web stretching device comprising a 'roll adapted to be driven by contact with each edge of a traveling web, a portion-of said roll being smooth, readily adjustable means for setting said roll at an angle to the travel of said web, means for, guiding the web to engage a considerableportion of the surface of said roll, and means for arresting the roll at a predetermined point in its rotation by an excessive lateral movement of the web to bring its smooth side toward the web. 13. A web stretching and guiding device comprising a roll adapted to be driven by contact with each edge of a'traveling web, 'a portion of said roll being smooth, readily adjustable meansfor setting saidroll at an angle to the travel of said web, means for guiding the web toengage a considerable portion of the surface of said i011, and a rotatable feeler positively driven in time with said roll for automatically arresting the rotation of the roll so as to bring its smooth side to the web when the latteris drawn too far to one side and to release the roll when the web has returned.

1 1. A web stretcher comprising a roll having .a 'portion' of its surface roughened, means for settin said roll. at an angle to the travel of the we a rotatable feeler having a plurality of fingers, a plurality of fixed fingers coiiperating with said rotatable fingers, and means whereby the inserting of the web margin between said cooperatingfingers arrests the rotation of said roll. i

15. A web stretcher comprising a roll having a portion of its surface roughened, means for setting said roll at an angle to the travel of the web, a rotatable feeler having a plurality of fingers, a plurality of fiXed fingers cooperating with said rotatable fingers, means whereby. the inserting of the web margin between said cooperating fingers arrests the rotation of said roll, and means whereby said fingers are provided with anti-friction surfaces.

16. A web stretcher comprising a roll having alternate rough and smooth longitudinally disposed portions, on the workingv surface of said roll, and adjustable means whereby the axis of said rollmay be readily setbat any desired angle to the travel of the we f 17. A web stretcher comprising a roll to engage each of the opposite edges of the go0ds, each roll having a working surface roughened on one side and smooth on itsopposite side, and means whereby said roll may be readily adjusted 'in line with the travel of the goods engaged by it. v

18. A web stretcher comprising a roll to engage each of the opposite edges of the goods, each roll having a working surfaceroughened on one side and smooth on 1ts opposite side, and means whereby the angularity of the axis of each roll may be ad justed. v v

19. A web stretching and guiding device comprising two single rolls one arranged on each side of the web to engage its opposite edges, each of said rolls having a portion only of its working surface smooth, said rolls being set on an angle to each other whereby they will pull in opposite directions upon the web, and means whereby an excessive side motion of the web margin .on one roll will cause the same to stop with its smooth surface to the web and so permit the opposite roll'to pull the web back to normal, said means being adapted to start the stopped roll when the web is centralized.

In testimony whereof I afiix my signature in presence of two witnesses.

JOHN T. BOLTON.

' Witnesses:

L. E. FoRsY'rH, THOS. Fonsrrrr.

Copies 01. .this patent may be obtained tor fiveeents each, by addressing the Commissioner of la ten ts,

' i Washington, D. O. 

